What is true concerning light settings in a 3D animation program?
Decreasing the light’s intensity will make the light brighter
The light’s color element uses the RGB scale
The location of the light is measured in the Z axis
The light’s angle of incidence specifies the Y-axis location of a light
What type of light in a 3D program does NOT come from any one point?
Ambient
Local
Point
Spot
What type of light in a 3D program simulates the light rays from the sun?
Ambient
Infinite
Omni
Spot
Which term BEST describes a light that has an inside circle of bright light (hot spot) joined to an outside circle of light that gradually falls off and is less intense?
Colonization of light
Distance light
Point light
Spot light
What 3D scene light is usually 25 – 50 percent the strength of the main light? It is used to add enough light to soften the main light and to reduce or eliminate unwanted shadows.
Back light
Fill light
Key light
Spot light
What are two main elements affecting camera usage in a 3D scene?
Camera lens type and tilt
Camera size and location
Camera tilt and zoom
Camera zoom and size
What does the term, “opacity” refer to?
How much light can pass through an object
The dominant wavelength of light
The object’s shininess
The lightness or darkness of an object
How can an object appear more transparent?
Decrease opacity
Decrease specular
Increase opacity
Increase specular
What camera technique is a measurement of focus accuracy for a given distance? For example, when one looks at a scene the main subject may be in focus while the background and foreground would appear blurred?
Depth of field
Field of view
Motion blur
Zoom
What camera technique describes an angle or cone of vision, which defines the objects that one can see when one looks in a particular direction? Objects to the left or right will not be seen.
Depth of field
Decay
Field of view
Motion blur
What is true concerning texture maps?
An affect that adds florescent lighting to a scene
2D patterns placed on a 3D surface
The height, width, and depth of an object
Used to add animation to a 2D object
What 3D scene light adds depth to the scene by separating the objects from the background, giving them more of a defined shape? This light is placed behind the objects in the scene and is about 50 – 100 percent the intensity of the main light.
Back light
Fill light
Key light
Spot light
What is true about bump mapping?
An affect that adds florescent lighting to a scene
#] It simulates the effect of depth on a 3D object
The height, width, and depth of an object
2D patterns that are placed on a 3D surface
What would typically be a texture map?
Boolean
3D solid
2D image
Phong pattern
A student placed a key light in front of and above the items in the scene. A 50% intensity fill light was placed in front of the items and off to the side. A backlight was placed at ground level at 1.5 times the key. What was the mood of the lighting?
Frontal lighting or overhead light
High key light or interior, daylight
Low key lighting or night time scenes
Side lighting or light that simulates sunlight
When working with a 3D model, what is UVW mapping?
A method of projection mapping used to apply a texture to an object
How a texture map is applied to an object on the X, Y, and Z-axis
The method of tiling or repeating a pattern on an object
Wireframe display used as a base to attach a texture map
What illusion of roughness is created when an irregular surface has light and dark areas caused by the surface normals pointing in different directions?
Bump Mapping
Material tiling
Texture mapping
UVW Mapping
What 3D lighting setup would simulate an overhead light on a table?
Frontal
High key
Low key
Side
What does the decay setting change or do to a light setup in a 3D scene?
Describes how the light’s energy is dispersed
Measures the amount of light fade or lessening of intensity
Simulates the diminishing (fading) of a light’s intensity over a distance
Will cause the light to dim in proportion to how far the light is away from its source
What 3D mapping technique creates the illusion of shiny metals and glass by bouncing rays off the object’s surface?
Bump map
Reflection map
Solid map
UVW map
A student made an image in a 2D program, saved it as a bitmap, and applied it to a sphere in a 3D program. What technique did the student use?
Blenn shader
Boolean operation
Gouraud shading
Texture mapping
How can a 2D texture appear seamless when applied to a 3D object?
Tiling
UV mapping
Shading
Scaling
What 3D technique should be used to show the appearance of light bending through water?
Bump mapping
Reflection mapping
Refraction mapping
UVW mapping
In a 3D scene, Light intensity refers to:
Brightness.
Color.
RGB value.
Saturation.
An example of a computer graphics light that resembles a light bulb is a/an:
Area light.
Infinite light
Point light (Local light).
Spotlight.
An example of a computer graphics light that radiates light evenly in all directions is the:
Area light.
Infinite light (Directional light).
Point light (Local light).
Spotlight.
The computer graphics light that is most like the sun is a/an:
Area light.
Infinite light (Directional light).
Point light (Local light).
Spotlight.
The type of computer graphics light that produces a fuzziness around the edge of a hotspot is the:
Area light.
Infinite light (Directional light).
Point light (Local light).
Spotlight.
The naturally occurring light in the world around a person is called a/an:
Ambient light.
Dropoff or Falloff.
Infinite or directional light.
Penumbra.
A computer graphics white light would probably be used to emphasize:
Early morning.
Late afternoon
Midday.
Nighttime.
In a three-light computer graphics layout, the light that produces the shadows is the:
Ambient light.
Backlight
Fill light.
Key light.
In a computer graphics three-light layout, the light that is positioned opposite the Key light is the:
Ambient light.
Backlight.
Fill light.
Key light.
In a three-light layout, the light that is positioned above and to the front or side of the objects in the scene is the:
Ambient light.
Backlight.
Fill light.
Key light.
The fact that light dims over a distance is simulated in computer graphics with:
Falloff.
Backlight.
Fill light.
Ray-tracing.
Objects in a computer graphics scene closest to the light source are:
Brighter.
Darker.
Dimmer.
Shadowed.
Medium distance camera shots in a computer graphics scene would be used to:
Blur everything in the scene.
Define the environment or area.
Make gestures or movement clear.
Show close-ups of small details.
When a computer graphics surface has roughness, it has be assigned a:
Bump map.
Pattern map.
Surface map.
Texture map.
Bump maps in 3D modeling programs create by:
Altering of surface polygon height.
Modification of polygon angles.
Movement of the polygon vertices.
The illusion of light and dark areas.
In 3D modeling, the height and depth of bumps are controlled by adjusting the settings for the:
Aptitude or intensity.
Incidence angle.
Refraction.
Spherical projection.
Which is NOT a still image output for a project on a PC?
AVI
BMP
JPEG
TIFF
What output size would result in the greatest render time?
256 x 243
320 x 240
512 x 446
800 x 600
Which term describes a computer animation technique that fills in the missing frames between key frames?
Tweening
Multiple path
Spline-based
Single path
What is produced when a student transforms an object during the 3D animation process?
Controller
Key frame
Morph
Tween
Which is correct concerning 3D computer animation techniques?
Morphing is a gradual transition from one object into another
Morphing is a simulation of natural occurrences such as gravity, wind, and running water
Tweening is a changing the shape by twisting, stretching, or squashing of an object through computer manipulation
Tweening is a simulation of natural occurrences such as gravity, wind, and running water
Which relationship is MOST like the relationship between storyboarding and animation?
Outline to a novel
Operating system to a CPU
Printer to a computer
Title to an article
Which description BEST explains a computer animation?
Drawing key frames and allowing the computer to fill in the in-between frames
Drawing all 100 frames of a 100 frame animation
Having the computer calculate the type of bitmap that is needed for a frame
Taking a video and converting it to a computer file
How can you produce the various speeds of movement associated with a bouncing a ball?
Edit the in and out movements for each key frame
Make all frames in an animation key frames
Make the ball follow a path using a path controller
Use the sweep tool to move the ball in the correction motion
What is NOT a single frame output?
AVI
JPEG
TARGA
TIFF
What is NOT a computer assisted 3D animation process?
Key frame
Morphing
Path controller
Particle system
What is the term for the number of frames used in an animation and how fast they will run?
Frame rate
Play time
Run time
Scene rate
A student wanted to produce a movie for the European market. How many frames do they need for a one minute video?
1500
2500
3000
5000
What camera technique do architects use to show clients what a proposed internal structure will look like?
Look at
Panning
Walkthroughs
Zooming
How many frames are in a NSTC standard animation that plays for 10 seconds?
150
250
300
500
What are hierarchical structures?
A complex object made of many objects
Many objects that are grouped together
Objects that are combined into one object
Two objects in the same scene
A student has completed all the models and defined all motions that are to appear in an animation. What process is necessary to finish the animation and create an AVI file?
Animate
Crop
Mask
Render
What is NOT a use of hierarchical structures in a 3D animation program?
Allows individual parts to be moved, rotated, scaled, or textured independently
Different elements can be linked together in parent child relationships
Movement of different parts can be controlled independently
Welds objects together so they become one
Why render a scene made in a 3D animation program?
Allow it to be used and viewed in other applications
Only way to save a scene in a 3Dprogram
Rendered files make corrections to the 3D scene easier
Render process uses less hard drive space that the open 3D scene
What is the most common type of compression?
Cinepak
Mov
TADA
TIFF
What post-production editing technique adds a sense of reality by recreating the effects that occur in real camera lenses, such as streaks of light?
Depth of field
Environmental map
Lens Flare
Volume fog
Which would require less hard-drive space after rendering?
15 frames/sec at 320 x 240
30 frames/sec at 640 x 480
30 frames/sec at 800 x 600
15 frames/sec at 640 x 480
Which output files would render in the least amount of time?
15 frames/sec with 320 x 240 output
30 frames/sec with 320 x 240 output
15 frames/sec with 640 x 480 output
30 frames/sec with 640 x 480 output
What camera parameter allows objects inside of the focal range to become blurred while the main subject stays in focus?
Depth of field
Lens flare
Pan
Zoom
To use less hard-drive space and less rendering time:
Increase output size.
Decrease output size.
Decrease input size.
Increase input size.
When rendering an animation, a student set the compression to 50%. The final animation would:
Be shorter in length
Be a larger file
Be cropped
Have a smaller file size
A leg, knee, and an ankle are a hierarchical relationship in a 3D program. What relationship below is correct?
Ankle to knee = parent to parent
Knee to leg = siblings
Leg to knee = parent to child
Leg to ankle = child to parent
To keep a camera pointed at an object as the object (or camera) moves, use the:
Depth of Field tool.
Field of View tool.
Look Ahead tool.
Look At tool.
When animating, the ability to have the wheels rotate while the truck moves forward is possible because of:
Bump mapping.
Falloff.
Hierarchy.
Look Ahead tools.
When animating, if the wheels of a truck are rotating while the truck moves forward, the truck is the:
Children.
Parent.
Sibling.
Sisters.
When animating, if the wheels of a truck are rotating as the truck moves forward, the wheels are the:
Children.
Parent.
Sibling.
Sisters.
When using the “look at” tool for camera animation, the Z axis should be pointed:
At the object of interest.
Downward.
Toward the back.
Upward
Which file format would a student use if they wanted to export an animation that can be played on a VCR in England?
AVI
MPEG
NTSC
PAL
Why does a videotape purchased in Italy NOT play on a VCR in the US?
One is digital and one is analog
One is 32 fps and one is 30 fps
One is stereo and one is mono
The videotapes are different sizes
What can video editing software add to a rendered 3D scene?
All images can be edited for content with the video editor
Enhances animations with sound, titles, and scene transitions
Nothing- video editing can not add any new effects to rendered scenes
Video editing software can add textures to the scene
Which video production output would be digital?
AVI
SMHS
SVHS
VHS
What device records light and sound as continuously changing electrical signals described by a continuous change of voltage?
Analog
Digital
Spline
Wireframe
Why are digital formats preferred over analogue?
Analogue is harder to use
Digital is cheaper
The data does not change with use
The data is easier to use
What computer would be best suited for a video editing center?
Computer with a laser printer
Computer with a scanner
Computer with a large keyboard
Computer with large amounts of RAM
Which is an analog device?
CD-ROM
Computer hard drive
Floppy disk
VHS tape
Which file type is linear?
CD-ROM
DVD
JPEG
VHS
A videotape formatted using NTSC will render at which frame rate?
30 frames/sec
40 frames/sec
15 frames/sec
45 frames/sec
What has an analog format?
CD-ROM
Floppy disk
Hard drive
VCR
What specifies the dimensions (in pixels) for frames in a video edited production?
Aspect ratio
Frame size
Frame rate
Timecode
What indicates the number of frames per second contained in the source video or the exported video?
Aspect ratio
Frame size
Frame rate
Timecode
What is an example of audio format used in scientific visualization?
AVI
JPEG
WAV
NTSC
What is NOT included in a MIDI file format?
Instruments
Rhythms
Synthesized music
Vocals
Which is NOT a standard video format?
MPEG
NTSC
PAL
WGAN
Which match is NOT correct concerning types of multimedia presentations?
Avi - PC movie
Awi – PowerPoint
MPEG - video
Movie - quick time
What is TRUE concerning audio settings used in video editing productions?
Audio compression is the number of bits used to describe the audio sample.
Audio interleave reduces file size when exporting large audio files to CD-ROMs.
Audio bit depth specifies how often audio data is inserted among the video frames.
8-bit mono sound is very similar to FM radio.
What term best describes a VHS video tape?
Audio
Digital
European
Linear
What file format is used in European markets?
AVI
MPEG
PAL
WAV
What video editing technique allows one to make a gradual change from one video clip to another by using special effects?
Alpha channel
Bins
Time stamping
Transitions
What is TRUE concerning title clips that are used when editing videos?
A title crawl is a static text window that is inserted into a video clip.
Title clips allow text to move from the bottom of the screen to the top.
Title rolls move the text across the screen from one side to the other.
Use of an alpha channel allows the title to be superimposed over other clips.
What match concerning color bit information is correct?